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      1 /*
      2  * Copyright (C) 2008 The Guava Authors
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  * http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.google.common.collect.testing.testers;
     18 
     19 import static com.google.common.collect.testing.features.CollectionFeature.SUPPORTS_REMOVE;
     20 import static com.google.common.collect.testing.features.CollectionSize.ZERO;
     21 
     22 import com.google.common.annotations.GwtCompatible;
     23 import com.google.common.collect.testing.features.CollectionFeature;
     24 import com.google.common.collect.testing.features.CollectionSize;
     25 
     26 /**
     27  * A generic JUnit test which tests remove operations on a set. Can't be
     28  * invoked directly; please see
     29  * {@link com.google.common.collect.testing.ListTestSuiteBuilder}.
     30  *
     31  * @author George van den Driessche
     32  */
     33 @GwtCompatible
     34 public class SetRemoveTester<E> extends AbstractSetTester<E> {
     35   @CollectionFeature.Require(SUPPORTS_REMOVE)
     36   @CollectionSize.Require(absent = ZERO)
     37   public void testRemove_present() {
     38     getSet().remove(samples.e0);
     39     assertFalse("After remove(present) a set should not contain "
     40         + "the removed element.",
     41         getSet().contains(samples.e0));
     42   }
     43 }
     44